High-performance automatic air vent for hydronic heating and cooling systems. Releases air from closed-loop circuits with pressures to 150 psi, discharging up to 4.5 SCFM. Brass body with stainless steel float linkage; compatible with water and glycol solutions (up to 50%). Dual connection: 3/4" male NPT inlet and 1/2" female NPT outlet.
Caleffi 551004A Automatic Air Vent 1/2" NPT Female
Caleffi
$83.95
In Stock
- Replaces
- 01124/21 NA
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Caleffi
Caleffi 551004A Automatic Air Vent 1/2" NPT Female
- SKU:
- 551004A
- Product Type:
- Automatic Air Vent
- Subcategory:
- Hydronic System Air Vent
- Application:
- Residential/Commercial
- System Type:
- Boiler, Hydronic Heating, Chiller, Radiant System
- Installation Type:
- OEM Replacement
- Temperature Range:
- 32–230°F (0–110°C)
- Pressure Rating:
- 150 psi (10 bar)
- Inlet Size:
- 3/4" NPT Male
- Connection Type:
- NPT
- Connection / Joint:
- NPT
- Material:
- Brass body, polypropylene float, stainless steel linkage, peroxide-cured EPDM seals
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